staging: wilc1000: handle_set_mac_address: use netdev_err

This patch uses netdev_err instead of PRINT_ER that is a custom debug
print.
Signed-off-by: NChaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/host_interface.c

@@ -442,7 +442,7 @@ static void handle_set_mac_address(struct wilc_vif *vif,
 	ret = wilc_send_config_pkt(vif, SET_CFG, &wid, 1,
 				   wilc_get_vif_idx(vif));
 	if (ret)
-		PRINT_ER("Failed to set mac address\n");
+		netdev_err(vif->ndev, "Failed to set mac address\n");
 
 	kfree(mac_buf);
 }